Abstract
A setup for measuring the permittivity and the loss parameter of ceramic samples is described. The setup operation is based on a conventional method for measuring changes in the frequency and Q-factor values of cavities caused by insertion of experimental samples into the cavity. Cylindrical ceramic samples with the permittivity ε = 8–10 and loss parameter tan δ = (2–4) × 10–4 were studied. A cylindrical E 010 cavity with a cutoff waveguide attached to one of the faces of the cavity was selected, because it provided sufficient accuracy of measurement and could be effectively used for testing series of samples of various sizes and shapes at a fixed frequency of 1300 MHz. It was shown that the permittivity of various samples could be determined with an accuracy of 1.5%, whereas the loss parameter could be determined with an accuracy of 7%.
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Sobenin, N.P., Sulimov, A.A., Fadin, A.I. et al. Measurement of the Parameters of the Dielectric Windows of the Linear Collider TESLA Cavities. Instruments and Experimental Techniques 43, 774–776 (2000). https://doi.org/10.1023/A:1026619901343
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DOI: https://doi.org/10.1023/A:1026619901343